Posted by danielle on Monday, October 20, 2008 at 11:55pm.
Eqn (1) to be mly by 4,
then we have 4x-4y=-4,
(2)5x+4y=-23
----------
9x+ 0=-27
9x=-27
x=-27/9=-3
x=-3.
to get y,
we substitute in the eqn(1)
(x-y=-1) as -3-y=-1
-3+1=y
y=-2.
Therefore, we get x=-3
y=-2
Related Questions
algebra - i need help with these problems (either a solution or how to plug them...
Algebra - Solving system of linear equations by using the apropiate method name ...
College Algebra - Solve the system of equations using matrices. If system has no...
algebra - use method of substitution to solve the system of linear equations. 2x...
math - solve by the substitution method. 5x + 7y= -19 x=4-4y what is the ...
Linear Equations - Can you please help solve this equation using the ...
algebra - Solve using the substitution method. Show your work. If the system has...
Algebra - Solve using the substitution method. Show your work. If the system has...
Algebra - Solve using the substitution method. Show your work. If the system has...
Algebra - Solve using the substitution method. Show your work. If the system has...
For Further Reading
